The US patent office has granted Jack Dorsey and Biz Stone a patent for the Twitter.Twitter's patent, number 8,401,009 was issued yesterday and is described as:
A system (and method) for device-independent point to multipoint communication is disclosed. The system is configured to receive a message addressed to one or more destination users, the message type being, for example, Short Message Service (SMS), Instant Messaging (IM), E-mail, web form input, or Application Program Interface (API) function call. The system also is configured to determine information about the destination users, the information comprising preferred devices and interfaces for receiving messages, the information further comprising message receiving preferences. The system applies rules to the message based on destination user information to determine the message endpoints, the message endpoints being, for example, Short Message Service (SMS), Instant Messaging (IM), E-mail, web page output, or Application Program Interface (API) function call. The system translates the message based on the destination user information and message endpoints and transmits the message to each endpoint of the message.
Dorsey is no longer actively involved in the company, but he does remain chairman. What is unusual about this news is that Evan Williams is not listened as one of the patent holders.